Fastener for a nut



FIG. 1 is a top perspective view of a fastener for a nut according to my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is an end view thereof;

FIG. 5 is an opposite end view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof. 

CLAIM The ornamental design for a fastener for a nut, as shown and described. 